What is 15 percent of 40?
15% of 40 is 6.
15% of 40
6
How it is calculated
Formula: X% of Y = X ÷ 100 × Y
- Turn the percentage into a decimal: 15 ÷ 100 = 0.15.
- Multiply by the number: 0.15 × 40 = 6.
What this means
- Shortcut: 10% of 40 is 4, 5% is half of that (2); add them for 15%: 6.
- As a price: a 15% discount on $40 saves $6, so you pay $34; adding 15% instead (tax or a tip) makes it $46.
Try other numbers
The full percentage calculator, filled in with these values.
%
Formula: X% of Y = X ÷ 100 × Y
15% of 40 is
6
15 ÷ 100 × 40 = 6
| Percentage | Value |
|---|---|
| 1% | 0.4 |
| 5% | 2 |
| 10% | 4 |
| 15% | 6 |
| 20% | 8 |
| 25% | 10 |
| 50% | 20 |
| 75% | 30 |
Show the steps
- Turn the percentage into a decimal: 15 ÷ 100 = 0.15.
- Multiply by the number: 0.15 × 40 = 6.